The top U.S. military officer says that despite an escalation in rhetoric between the United States and North Korea, he had not seen Pyongyang change its military posture. His comments come after reports that North Korea appeared to have boosted defences on its east coast.

U.S. President Donald Trump announces he will visit Puerto Rico after his administration came under criticism for its response to the damage on the island that is home to more than three million U.S. citizens.